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  • How To Build A Sand Dam

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How To Build A Sand Dam

Built as reinforced concrete walls across seasonally dry river-beds, sand-dams initially fill up with water – but after 1-3 seasons, fill with sand. Carried in the soil, the sand collects behind the dam whilst the silt is taken further downstream. Water stored below the sand prevents parasites and evaporation, as well as providing a filter for the 2-10M litres of water stored beneath.

One World TV | July 6, 2007Watch more videos from One World TV

Tags:. .change. .water. .development. .providing. .build











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